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8390054 = 24195027
BaseRepresentation
bin100000000000…
…010110100110
3120210020222202
4200000112212
54121440204
6455454502
7131212541
oct40002646
916706882
108390054
114810632
122987432
131979b3a
141185858
15b0ae1e
hex8005a6

8390054 has 4 divisors (see below), whose sum is σ = 12585084. Its totient is φ = 4195026.

The previous prime is 8390051. The next prime is 8390069. The reversal of 8390054 is 4500938.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×83900542 = 140786012245832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8389999 and 8390026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8390051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2097512 + ... + 2097515.

It is an arithmetic number, because the mean of its divisors is an integer number (3146271).

Almost surely, 28390054 is an apocalyptic number.

8390054 is a deficient number, since it is larger than the sum of its proper divisors (4195030).

8390054 is a wasteful number, since it uses less digits than its factorization.

8390054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195029.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 8390054 is about 2896.5589930122. The cubic root of 8390054 is about 203.1990088974.

The spelling of 8390054 in words is "eight million, three hundred ninety thousand, fifty-four".

Divisors: 1 2 4195027 8390054